Browsing by Author "Kratz, K.L."

Now showing items 21-32 of 32

    • Nuclear physics issues of the r-process 

      Thielemann, Friedrich-Karl; Kolbe, E.; Martinez-Pinedo, G.; Panov, I.; Rauscher, T.; Kratz, K.L.; Pfeiffer, B.; Rosswog, S. (World Scientific Publishing, 2003)
      The present paper aims at understanding r-process nucleosynthesis by addressing the nuclear physics involved, the necessary environment conditions in the (stellar) production sites, and the observational constraints. We ...

    • The origin of the Ca-Ti-Cr-Fe-Ni isotopic anomalies in the inclusion EK-1-4-1 of the Allende meteorite 

      Sorlin, O.; Gaudefroy, L.; Kratz, K.L.; Rauscher, T. (2003)
      The origin of the correlated Ca-Ti-Cr-Fe-Ni isotopic anomalies in the Ca-Al-rich inclusion of the EK-1-4-1 of the Allende is a longstanding puzzle. The search for a stellar environment which could explain the enrichment ...

    • Production of intermediate-mass and heavy nuclei 

      Thielemann, Friedrich-Karl; Froehlich, Carla; Hirschi, R.; Liebendoerfer, M.; Dillmann, I.; Mocelj, D.; Rauscher, T.; Martinez-Pinedo, G.; Langanke, K.; Farouqi, K.; Kratz, K.L.; Pfeiffer, B.; Panov, I.; Nadyozhin, D. K.; Blinnikov, S.; Bravo, E.; Hix, W. R.; Hoflich, P.; Zinner, N. T. (Elsevier, 2007)
      Nucleosynthesis is the science related to all astrophysical processes which are responsible for the abundances of the elements and their isotopes in the universe. The astrophysical sites are the big bang and stellar objects. ...

    • The r-, p-, and nu p-Process 

      Thielemann, Friedrich-Karl; Dillmann, I.; Farouqi, K.; Fischer, T.; Froehlich, C.; Kelic-Heil, A.; Korneev, I.; Kratz, K.L.; Langanke, K.; Liebendoerfer, M.; Panov, I. V.; Martinez-Pinedo, G.; Rauscher, T. (IOP Publishing Ltd., 2010)
      The processes discussed in this review are three of the four nucleosynthesis processes involved in producing heavy nuclei beyond Fe (not counting the rp-process in Xray bursts). Opposite to the fourth process (the s-process), ...

    • The r-process : Supernovae and other sources of the heaviest elements 

      Thielemann, Friedrich-Karl; Mocelj, D.; Panov, I.; Kolbe, E.; Rauscher, T.; Kratz, K.L.; Farouqi, K.; Pfeiffer, B.; Martinez-Pinedo, Gabriel; Kelic, A.; Langanke, K.; Schmidt, K. -H.; Zinner, N. (2007-05)
      Rapid neutron capture in stellar explosions is responsible for the heaviest elements in nature, up to Th, U and beyond. This nucleosynthesis process, the r-process, is unique in the sense that a combination of nuclear ...

    • The r-process in supernovae 

      Thielemann, Friedrich-Karl; Argast, D.; Mocelj, D.; Rauscher, T.; Cowan, J.J.; Kratz, K.L.; Pfeiffer, B. (World Scientific Publishing, 2004-09)
      This introductory review aims at understanding r-process nucleosynthesis by addressing the issues involved, nuclear properties, necessary environment conditions, properties of different suggested r-process sites, observational ...

    • The r-process in the high entropy bubble 

      Freiburghaus, C.; Rauscher, T.; Thielemann, Friedrich-Karl; Kratz, K.L.; Pfeiffer, B. (1997-08-04)

    • rp-process nucleosynthesis at extreme temperature and density conditions 

      Schatz, H.; Aprahamian, A.; Gorres, J.; Wiescher, M.; Rauscher, T.; Rembges, J.F.; Thielemann, F.K.; Pfeiffer, B.; Moller, P.; Kratz, K.L.; Herndl, H.; Brown, B.A.; Rebel, H. (1998-02)
      We present nuclear reaction network calculations to investigate the influence of nuclear structure on the rp-process between Ge and Sn in various scenarios. Due to the lack of experimental data for neutron-deficient nuclei ...

    • Study of short-lived silver isotopes with a laser ion-source 

      Fedoseyev, V.N.; Jading, Y.; Jonsson, O.C.; Kirchner, R.; Kratz, K.L.; Krieg, M.; Kugler, E.; Lettry, J.; Mehren, T.; Mishin, V.I.; Ravn, H.L.; Rauscher, T.; Scheerer, F.; Tengblad, O.; Vanduppen, P.; Wohr, A. (1995-03)
      A chemically selective laser ion source based on resonance ionization of atoms in a hot cavity has been applied for the study of short-lived silver isotopes at CERN/ISOLDE. Silver atoms were ionized by two resonant excitations ...

    • Study of the N=28 shell closure in the Ar isotopic chain : a SPIRAL experiment for nuclear astrophysics 

      Gaudefroy, L.; Sorlin, O.; Beaumel, D.; Blumenfeld, Y.; Dombradi, Z.; Fortier, S.; Franchoo, S.; Gelin, M.; Gibelin, J.; Grevy, S.; Hammache, F.; Ibrahim, F.; Kemper, K.; Kratz, K.L.; Lukyanov, S. M.; Monrozeau, C.; Nalpas, L.; Nowacki, F.; Ostrowski, A. N.; Penionzhkevich, Yu. -E.; Pollacco, E.; Roussel-Chomaz, P.; Rich, E.; Scarpaci, J. A.; Laurent, M. G. St.; Rauscher, T.; Sohler, D.; Stanoiu, M.; Tryggestad, E.; Verney, D. (2006-03)
      The structure of the neutron-rich nucleus (47)Ar has been investigated through the d((46)Ar,(47)Ar)p transfer reaction. The radioactive beam of (46)Ar at 10 A . MeV was provided by the SPIRAL facility at GANIL. The protons ...

    • Theoretical neutron-capture cross sections for r-process nucleosynthesis in the Ca-48 region 

      Rauscher, T.; Bohmer, W.; Kratz, K.L. (Editions Frontieres, 1995)

    • Uncertainties in direct neutron capture calculations due to nuclear structure models 

      Rauscher, T.; Kratz, K.L.; Oberhummer, H.; Dobaczewski, J.; Moller, P.; Sharma, M. (1997-08-04)
      The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. For spherical nuclei close to the dripline the statistical model (Hauser-Feshbach) approach is not applicable ...